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forsale [732]
3 years ago
14

Will give brainliest

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

\displaystyle\\\sum_{n=1}^7(4n+2)

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Margarita [4]
This is the degree other do like as that

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3 years ago
Which of the following inequalities does the graph represent?
Romashka-Z-Leto [24]

For this case we must indicate the inequality represented in the graph.

It is noted that we have a closed point at -1, so the inequality at that point contains equality and is represented by "[". On the other hand, we observe an open point at +3, so inequality does not include equality (does not include +3) and is represented as ")".

So, the interval of the graph is:

[-1,3)

This is equivalent to:

-1 \leq t

Answer:

Option B

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3 years ago
Select all the system of equations that have exactly one solution
Mariana [72]

Answer:D

Step-by-step explanation:

8 0
3 years ago
Help ASAP
Contact [7]

Answer:

The second:   \bold{f (x) =4(x+\frac34)^2-\frac{21}4}

Step-by-step explanation:

                            f (x) =4x^2+6x-3\\\\f (x) =4(x^2+\frac64x]-3\\\\f (x) =4[x^2+2\cdot x\cdot\frac34+(\frac34)^2-(\frac34)^2]-3\\\\f (x) =4[(x+\frac34)^2-(\frac34)^2]-3\\\\f (x) =4(x+\frac34)^2-4(\frac34)^2-3\\\\f (x) =4(x+\frac34)^2-\frac94-\frac{12}4\\\\\underline{f (x) =4(x+\frac34)^2-\frac{21}4}

6 0
3 years ago
A local gym had 490 members last quarter. This quarter, with a change in its rates, it has 686 members. What is the percent of i
sergij07 [2.7K]

Given:

Number of gym members in last quarter = 490

Number of gym members in this quarter = 686

To find:

The percent of increase in the number of members.

Solution:

We have,

Number of gym members in last quarter = 490

Number of gym members in this quarter = 686

Now, the percent of increase in the number of members.

\%\text{ of increase}=\dfrac{{Members in this month - Members in last month}}{\text{Members in last month}}\times 100

\%\text{ of increase}=\dfrac{686-490}{490}\times 100

\%\text{ of increase}=\dfrac{196}{490}\times 100

\%\text{ of increase}=\dfrac{2}{5}\times 100

\%\text{ of increase}=2\times 20

\%\text{ of increase}=40

Therefore, the gym members increased by 40%.

4 0
3 years ago
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